In article , Mark Rand wrote:
On Wed, 7 Oct 2009 13:10:58 -0600, "SteveB" wrote:

How do I figure the area of a pool from the perimeter? It is a kidney
shaped (exaggerated) pool.

Fix a rule to the side of the pool.
Bail out one (or more) 55 gallon drums full from the pool
Area per inch change per drum is approx 88.23 sq ft.
88.17
Walk around the perimeter feeling happy :-)

Clever. It would be easier still to *add* 55 gallons.